Motor

By installing carbon brush slots on the outside of the motor and utilizing a sliding connection and rack and pinion meshing structure, the problem of inconvenient carbon brush replacement is solved, and the replacement efficiency and conductivity are improved.

CN121840976APending Publication Date: 2026-04-10赵建鸿
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-28
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

In existing technologies, carbon brushes are located inside the motor, which makes replacement inconvenient and affects production efficiency.

Method used

Design an electric motor in which the carbon brush slot is installed on the outside of the motor, and the carbon brushes can be easily replaced through a sliding connection and a rack and pinion meshing structure.

Benefits of technology

It enables convenient replacement of carbon brushes, improving production efficiency and conductivity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the field of electrical engineering equipment, in particular to a motor. Comprising a rotor, an end cover, a carbon brush groove, a conductive loop and a motor shell, the end cover is in threaded connection with the motor shell, the rotor is rotatably connected in the end cover, a rotor winding is arranged on the rotor, and the rotor winding is communicated with the conductive loop. The rotating ring is rotationally connected to the end cover, the driving wheel is in key connection in the rotating ring, the driven wheel is rotationally connected to the end cover, and the driven wheel is meshed in the driving wheel. The motor further comprises an output shaft, a cross key and a mounting plate I. The rotor is provided with the output shaft, the output shaft is provided with the cross key, and the output shaft is rotationally connected into the mounting plate I. The motor further comprises a mounting hole, an insertion column, a permanent magnet and an insertion hole, the mounting hole is formed in the mounting plate I, the insertion column is arranged below the mounting plate I, the insertion hole is formed in the motor shell, the insertion column is inserted into the insertion hole, and the permanent magnet is arranged in the motor shell. And the carbon brush groove is arranged outside the motor, so that the carbon brush is convenient to replace.
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Description

Technical Field

[0001] This invention relates to the field of electrical engineering equipment, and more specifically to an electric motor. Background Technology

[0002] An electric motor is a device that converts direct current (DC) electrical energy into mechanical energy. It generates rotational torque based on the interaction between current and a magnetic field, converting electrical energy into mechanical motion. DC motors have a wide range of applications, including household appliances, industrial automation, machinery, transportation, and aerospace. Carbon brushes are electrical contact components used in DC motors. They are primarily used to transmit current to the conductive loops of the rotating rotor. Friction and wear occur between the carbon brushes and the armature. Therefore, carbon brushes are typically consumables and require periodic replacement. Currently, carbon brushes are mostly located inside the motor, making replacement a complex procedure and hindering production efficiency. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention provides an electric motor with the advantage of having a carbon brush slot installed on the outside of the motor, which makes it convenient to replace the carbon brushes.

[0004] An electric motor includes a rotor, an end cover, carbon brush slots, a conductive loop, and a motor housing. The end cover is threaded onto the motor housing, and the rotor is rotatably connected inside the end cover. A rotor winding is wound on the rotor and connected to the conductive loop. The end cover has a through hole, and a protrusion is provided below the carbon brush slot. The protrusions of the two carbon brush slots are slidably connected to the through hole on the end cover, and the two carbon brush slots are in close contact with both sides of the conductive loop.

[0005] It also includes a rotating ring, a driving wheel, and driven wheels. The rotating ring is rotatably connected to the end cover, the driving wheel is keyed inside the rotating ring, and the two driven wheels are rotatably connected to the end cover. The two driven wheels mesh inside the driving wheel, and a rack is provided on the carbon brush groove, which meshes with the driven wheels.

[0006] It also includes an output shaft, a cross key, and a mounting plate I. The rotor is provided with an output shaft, the output shaft is provided with a cross key, the output shaft is rotatably connected in the mounting plate I, and the mounting plate I is provided with a shaft groove.

[0007] It also includes mounting holes, inserts, permanent magnets and sockets. Mounting plate I has four mounting holes, and four inserts are located below mounting plate I. The four inserts are rotatably connected to the motor housing. The motor housing has four sockets, and the inserts are inserted into the sockets. There are three permanent magnets inside the motor housing. Attached Figure Description

[0008] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0009] Figure 1 Schematic diagram of the motor structure Figure 1 ;

[0010] Figure 2 Schematic diagram of the motor structure Figure 2 ;

[0011] Figure 3 Schematic diagram of the output shaft Figure 1 ;

[0012] Figure 4 Schematic diagram of the output shaft Figure 2 ;

[0013] Figure 5 Schematic diagram of mounting plate I Figure 1 ;

[0014] Figure 6 Schematic diagram of mounting plate I Figure 2 ;

[0015] Figure 7 Schematic diagram of the motor housing Figure 1 ;

[0016] Figure 8 Schematic diagram of motor housing structure Figure 2 ;

[0017] Figure 9 Schematic diagram of the base structure Figure 1 ;

[0018] Figure 10 Schematic diagram of the base structure Figure 2 .

[0019] In the diagram: Output shaft 101; Cross key 102; Rotor 103; End cover 104; Rotary ring 105; Carbon brush groove 106; Conductive loop 107; Driving wheel 108; Driven wheel 109;

[0020] Mounting plate I 201; Mounting hole 202; Cross hole 203; Mounting plate II 204; Insert post 205; Groove 206; Spring I 207; Retaining ring 208;

[0021] Motor housing 301; permanent magnet 302; socket 303; annular groove 304; spring II 305; stop post 306; T-slot 307;

[0022] Base 401; Threaded hole 402; T-shaped strip 403; Movable plate 404; Screw 405; Slide plate 406; Turning handle 407; Threaded rod 408. Detailed Implementation

[0023] like Figure 3-8 As shown, this example can achieve the effect of having a carbon brush slot 106 installed on the outside of the motor, making it convenient to replace the carbon brushes.

[0024] The motor includes a rotor 103, an end cover 104, carbon brush slots 106, a conductive loop 107, and a motor housing 301. The end cover 104 is threaded onto the motor housing 301. The rotor 103 is rotatably connected inside the end cover 104, and a rotor winding is wound on the rotor 103. The rotor winding is connected to the conductive loop 107. The end cover 104 has a through hole, and the carbon brush slots 106 have protrusions below them. The protrusions of the two carbon brush slots 106 are slidably connected to the through hole on the end cover 104. The two carbon brush slots 106 are tightly attached to both sides of the conductive loop 107, so that the carbon brushes can be installed on the carbon brush slots 106. The carbon brushes can then connect the conductive loop 107 and the rotor winding to the power supply, thus achieving the effect of having carbon brush slots 106 installed on the outside of the motor, making it convenient to replace the carbon brushes.

[0025] like Figure 3-4 As shown, this example allows for easy pressing of the carbon brush onto the conductive loop 107.

[0026] Since the motor also includes a rotating ring 105, a driving wheel 108, and driven wheels 109, the rotating ring 105 is rotatably connected to the end cover 104, the driving wheel 108 is keyed inside the rotating ring 105, and the two driven wheels 109 are rotatably connected to the end cover 104, meshing with the driving wheel 108. A rack is provided on the carbon brush groove 106, meshing with the driven wheels 109. Therefore, when the rotating ring 105 is rotated by hand, the driving wheel 108 rotates together, thereby driving the two driven wheels 109. The driven wheel 109 rotates together, which in turn drives the rack to move the carbon brush groove 106 outward or inward. When the carbon brush groove 106 slides outward, it separates from the conductive ring 107, making it easier to replace the carbon brush on the carbon brush groove 106. When the carbon brush groove 106 slides inward, it presses against the conductive ring 107, resulting in a tighter contact between the carbon brush and the conductive ring 107 and better conductivity. This achieves the effect of making it easier to press the carbon brush onto the conductive ring 107.

[0027] like Figure 3-4 As shown, this example allows for easy installation of a follower onto the output shaft 101.

[0028] Since the motor also includes an output shaft 101, a cross key 102, and a mounting plate I 201, the rotor 103 is provided with an output shaft 101, the output shaft 101 is provided with a cross key 102, the output shaft 101 is rotatably connected in the mounting plate I 201, the mounting plate I 201 is provided with a shaft groove, so that the driven member can be inserted into the output shaft 101, so that the bottom end of the driven member can be rotatably connected in the shaft groove on the mounting plate I 201, so that the cross key 102 can drive the driven member and the output shaft 101 to rotate together, thereby achieving the effect of facilitating the installation of the driven member on the output shaft 101.

[0029] like Figure 3-6As shown, this example demonstrates how to achieve the effect of vertically mounting a motor.

[0030] Since the motor also includes mounting holes 202, inserts 205, permanent magnets 302, and insertion holes 303, the mounting plate I 201 has four mounting holes 202 and four inserts 205. The four inserts 205 are rotatably connected to the motor housing 301. The motor housing 301 has four insertion holes 303, and the inserts 205 are inserted into the insertion holes 303. The motor housing 301 has three permanent magnets 302 inside. Thus, the four insertion holes 303 restrict the mounting plate I 201 and the inserts 205 from rotating around the motor housing 301. Thus, the mounting holes 202 can mount the motor on the workpiece surface perpendicular to the output shaft 101, thereby achieving the effect of vertically mounting the motor.

[0031] like Figure 3-6 As shown, this example can facilitate the fixation of the mounting plate I201.

[0032] Since the motor also includes a groove 206, a spring II 305, and a stop post 306, each of the two insert posts 205 above the mounting plate I 201 has two grooves 206, and each of the two insertion holes 303 above the motor housing 301 has a stop post 306 slidably connected to it. The spring II 305 is wound around the stop post 306, with one end of the spring II 305 pressing tightly against the stop post 306 and the other end pressing tightly against the insertion hole 303. The stop post 306 can be inserted into the groove 206, and the spring II 305 can push the stop post 306 into the groove 206, making the stop post 306 more tightly inserted into the groove 206. Thus, the stop post 306 can prevent the mounting plate I 201 and the groove 206 from moving along the insertion hole 303, thereby achieving the effect of facilitating the fixing of the position of the mounting plate I 201.

[0033] like Figure 5-6 As shown, this example can achieve the effect of installing the mounting bracket between mounting plate I 201 and mounting plate II 204.

[0034] Since the motor also includes a mounting plate II 204 and an annular groove 304, the motor housing 301 is provided with an annular groove 304, the mounting plate II 204 rotates within the annular groove 304, the mounting plate II 204 is provided with four through holes, the insert pins 205 are inserted into the through holes, the mounting plate II 204 is provided with four mounting holes 202, thus the insert pins 205 can prevent the mounting plate II 204 from rotating, thus the mounting plate I 201 and the mounting plate II 204 can clamp the mounting bracket, thus a nut can be set in the mounting hole 202, thus achieving the effect of installing the mounting bracket between the mounting plate I 201 and the mounting plate II 204.

[0035] like Figure 3-8 As shown, this example allows for easy rotation of the mounting plate I201.

[0036] Since the motor also includes a cross hole 203, a spring I 207, and a retaining ring 208, the mounting plate I has a cross hole 203, into which the cross key 102 can be inserted. The retaining ring 208 is slidably connected to the mounting plate II 204, and the spring I 207 is wound around the retaining ring 208. One end of the spring I 207 is pressed tightly against the mounting plate II 204, and the other end of the spring I 207 is pressed tightly against the retaining ring 208. The retaining ring 208 can be inserted into the groove 206, and the retaining ring 208 can wrap around the motor housing 30°. When the retaining ring 208 is inserted into the first groove 206, the insertion hole 303 restricts the rotation of the mounting plate I 201. When the retaining ring 208 is inserted into the second groove 206, the mounting plate I 201 disengages from the insertion hole 303. Then the cross key 102 is inserted into the cross hole 203, and the output shaft can drive the mounting plate I 201 to rotate, thereby achieving the effect of facilitating the rotation of the mounting plate I 201. This allows for the direct installation of driven components such as fans and reamers onto the mounting plate I 201.

[0037] like Figure 3-8 As shown, this example can achieve the effect of mounting the motor housing 301 on the base 401.

[0038] Since the motor also includes a T-slot 307, a base 401, a threaded hole 402, and a T-bar 403, the motor housing 301 has two T-slots 307 at the bottom and two T-bars 403 at the top of the base 401. The T-bars 403 can be inserted into the T-slots 307. The T-bars 403 have two baffles. The base 401 has four threaded holes 402. Thus, the motor housing 301 can be installed on the T-bars 403 of the base 401 through the T-slots 307. The two baffles can block the position of the motor housing 301 to prevent it from sliding. The motor can be installed on the workpiece horizontally and on the output shaft 101 through the threaded holes 402, thus achieving the effect of mounting the motor housing 301 on the base 401.

[0039] like Figure 7-10 As shown, this example allows for easy removal of the motor housing 301 from the base 401.

[0040] Since the motor also includes a movable plate 404 and screws 405, the movable plate 404 is located on the side of the T-shaped bar 403, and the screws 405 screw the movable plate 404 onto the T-shaped bar 403. Thus, when the movable plate 404 is removed from the T-shaped bar 403, the motor housing 301 can slide off the T-shaped bar 403, thereby achieving the effect of facilitating the removal of the motor housing 301 from the base 401.

[0041] like Figure 7-10 As shown, this example allows for easy fixation of the motor housing 301 to the base 401.

[0042] Since the motor also includes a slide plate 406, a handle 407, and a threaded rod 408, the slide plate 406 is slidably connected to the base 401. A rubber plate is provided on the slide plate 406. The threaded rod 408 is rotatably connected to the T-shaped bar 403. The slide plate 406 is threadedly connected to the threaded rod 408. The handle 407 is welded to one end of the threaded rod 408. Thus, when the threaded rod 408 rotates, it can drive the slide plate 406 to slide along the base 401. The rubber plate increases the friction between the slide plate 406 and the motor housing 301. Thus, the slide plate 406 clamps the motor housing 301 onto the baffle of the T-shaped bar 403, thereby achieving the effect of easily fixing the motor housing 301 to the base 401.

Claims

1. An electric machine comprising a rotor (103), an end cover (104), a carbon brush groove (106), a conductive loop (107) and a machine shell (301), the end cover (104) is threadedly connected on the machine shell (301), the rotor (103) is rotatably connected in the end cover (104), the rotor (103) is wound with a rotor winding, the rotor winding is connected to the conductive loop (107), the end cover (104) is provided with a through hole, the carbon brush groove (106) is provided with a protrusion below, the protrusions of the two carbon brush grooves (106) are slidably connected in the through hole on the end cover (104), and the two carbon brush grooves (106) are tightly attached to the two sides of the conductive loop (107).

2. An electric machine as claimed in claim 1, characterized in that: Further comprising a rotating ring (105), a driving wheel (108) and a driven wheel (109), the rotating ring (105) is rotatably connected on the end cover (104), the driving wheel (108) is keyed connected in the rotating ring (105), the two driven wheels (109) are rotatably connected on the end cover (104), the two driven wheels (109) are engaged in the driving wheel (108), and the carbon brush groove (106) is provided with a rack, the rack is engaged with the driven wheel (109).

3. An electric machine as claimed in claim 2, characterised in that: Further comprising an output shaft (101), a cross key (102) and a mounting plate I (201), the output shaft (101) is provided on the rotor (103), the cross key (102) is provided on the output shaft (101), the output shaft (101) is rotatably connected in the mounting plate I (201), and the mounting plate I (201) is provided with a shaft groove.

4. An electric machine as claimed in claim 3, characterised in that: Further comprising a mounting hole (202), a plug column (205), a permanent magnet (302) and a plug hole (303), the mounting plate I (201) is provided with four mounting holes (202), the mounting plate I (201) is provided with four plug columns (205), the four plug columns (205) are rotatably connected on the machine shell (301), the machine shell (301) is provided with four plug holes (303), the plug columns (205) are plugged into the plug holes (303), and the inside of the machine shell (301) is provided with three permanent magnets (302).

5. An electric machine as claimed in claim 4, characterised in that: Further comprising a recess (206), a spring II (305) and a blocking column (306), the two plug columns (205) above the mounting plate I (201) are each provided with two recesses (206), the two plug holes (303) above the machine shell (301) are each slidably connected with a blocking column (306), the spring II (305) is wound on the blocking column (306), one end of the spring II (305) is tightly pressed on the blocking column (306), the other end of the spring II (305) is tightly pressed on the plug hole (303), and the blocking column (306) can be plugged into the recess (206).

6. An electric machine as claimed in claim 5, characterised in that: Further comprising a mounting plate II (204) and a ring groove (304), the machine shell (301) is provided with a ring groove (304), the mounting plate II (204) is rotatable in the ring groove (304), the mounting plate II (204) is provided with four through holes, the plug columns (205) are plugged into the through holes, the mounting plate II (204) is provided with four mounting holes (202).

7. An electric machine according to claim 6, characterized in that: It also includes cross hole (203), spring I (207) and retaining ring (208), the mounting plate I is equipped with cross hole (203), cross key (102) can be inserted into the cross hole (203), retaining ring (208) is slidably connected on the mounting plate II (204), spring I (207) is wound on the retaining ring (208), one end of spring I (207) is tightly pressed on the mounting plate II (204), the other end of spring I (207) is tightly pressed on the retaining ring (208), the retaining ring (208) can be inserted into the groove (206), the retaining ring (208) can rotate around the motor shell (301).

8. An electric machine according to claim 7, characterized in that: It also includes T-shaped slot (307), base (401), threaded hole (402) and T-shaped bar (403), the motor shell (301) is equipped with two T-shaped slots (307) below, the base (401) is equipped with two T-shaped bars (403) above, the T-shaped bar (403) can be inserted into the T-shaped slot (307), the T-shaped bar (403) is equipped with two baffles, the base (401) is equipped with four threaded holes (402).

9. An electric machine as claimed in claim 8, characterised in that: It also includes movable plate (404) and screw (405), the movable plate (404) is arranged on the side of the T-shaped bar (403), and the screw (405) is fixedly connected with the T-shaped bar (403).

10. An electric machine as claimed in claim 9, characterised in that: It also includes sliding plate (406), handle (407) and threaded rod (408), the sliding plate (406) is slidably connected in the base (401), the sliding plate (406) is equipped with a rubber plate, the threaded rod (408) is rotatably connected in the T-shaped bar (403), the sliding plate (406) is threadedly connected with the threaded rod (408), and the handle (407) is fixedly connected with one end of the threaded rod (408).